生活型

herb

形態特徵

• Tall coarse perennials tufted with short thick rhizome. Culms ca. 1-3 cm in diam.
• Blades 2-4 cm wide, margins scabrid; ligule 2 mm long, fimbriate on upper margin, siliceous on dorsal side; sheath usually longer than internode, glabrous or subdensely pubescent (var. <i>coleotricha</i> Hackel).
• Panicle ample, 30-70 cm long, axis strigose at nodes. Spikelets 3-4-flowered or more, terete, 10-15 mm long.
• glumes chartaceous, lanceolate, siliceous apex with short awn or acute; lower glume ca. 12 mm long, 3-5-nerved, rarely 4-nerved, covered with a few silky hairs abaxially; upper glume ca. 10 mm long, 3-5-nerved; lemma 10-12 mm long, 5-nerved middle nerve prolonged into a 3 mm long awn, 2 lateral awn slightly cuspidate, basal part densely covered with long silky hairs which are nearly as long as lemma. palea ca. 5 mm long, 2-keeled, margins ciliate, apex truncate; lodicules 2, truncate, nerved, stamens 3. anther 2.5 mm long.

分布

• 世界 : A form with striped leaves (var. <i>versicolor</i> Stokes) is cultivated in Taiwan and Japan.

引證標本

TAIPEI: Chinshan, Hsu 1288; Tanshui, Hsu & Kuoh 12399. MIAOLI: Taian, Hsu 548. TAICHUNG: Lishan, Fung & Kao 5002. PINGTUNG: Liukuaitso, Suzuki 5695.

參考文獻

• HSU, Chien-Chang, Flora of Taiwan, second edition 5: 326. 2000.  (Fl. Taiwan 2nd edit.)